poetic-example-response-checker.xml

<response>
	<choice>
		<when evaluator="groovy" expression="payload instanceof java.util.Collection">
			<transformer ref="collectionToStringTransformer"/>
		</when>
		<otherwise>
			<log-component />
		</otherwise>
	</choice>
	<choice>
		<when evaluator="groovy" expression="payload.contains('xml')">
			<message-properties-transformer>
				<add-message-property key="Content-type" value="application/xml"/>
			</message-properties-transformer>
		</when>
		<otherwise>
			<message-properties-transformer>
				<add-message-property key="Content-type" value="text/plain"/>
			</message-properties-transformer>
		</otherwise>
	</choice>
</response>